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| EPoS Contribution |
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Multi-scale study of sequential triggered high mass star formation in S76
Igor Zinchenko Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia | |
| A possible role of triggering by H II region expansion in high mass star formation is actively discussed nowadays. We present multi-wavelength observations of the S76 area on the scales from a few arc seconds to about half degree (from ~ 0.01 to ~ 10 pc at the S76 distance of ~ 2 kpc). The observations include continuum emission by dust and ionized gas as well as numerous molecular transitions. In combination with the available IR images the large-scale data show an extended fragmented envelope around the evolved H II region, with distinct sites of active star formation. On small scales we see several clumps at apparently different stages of evolution. Some of them are associated with IR sources, molecular masers, high velocity outflows and developing, apparently second-generation, compact H II regions. We present estimates of the physical parameters of the various components and discuss their properties, probable interaction between components and relevance of the observed picture to the models of triggered star formation. | |
| Collaborators: R.-Q. Mao, PMO, China S. Kurtz, CRyA UNAM, Mexico D. Ojha, TIFR, India |
Suggested Session:
Cores and Collapse, Massive Stars, Molecular Clouds |